Antiplanes thalaea

Antiplanes thalaea is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae,.[1]

Antiplanes thalaea
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Pseudomelatomidae
Genus: Antiplanes
Species:
A. thalaea
Binomial name
Antiplanes thalaea
(Dall, 1902)
Synonyms[1]
  • Antiplanes (Rectiplanes) willetti Berry, 1953
  • Antiplanes rotula Dall, 1921
  • Antiplanes santarosana (Dall, 1902)
  • Pleurotoma (Antiplanes) thalaea Dall, 1902 (basionym)
  • Pleurotoma (Spirotropis) smithi Arnold, 1903 (invalid: junior homonym of Pleurotoma smithii Forbes, 1840; Antiplanes rotula is a replacement name)
  • Pleurotoma santarosana Dall, 1902
  • Pleurotoma thalaea Dall, 1902

Description

The length of the shell attains 40 mm, its diameter 12 mm.

(Original description) The solid, heavy shell has an elongate spire constricted at the sutures, and eight or more whorls. The protoconch is eroded. The surface is covered with a pale apple green periostracum, which fades in time to a greenish gray. The surface is sculptured only by incremental lines, faint spiral lines, a slight depression of the anal fasciole, and irregular, feeble, broken, short elevated lines which are scattered over the surface and usually directed at right angles to the incremental lines. The aperture is short and narrow, with a short and wide siphonal canal. The outer lip shows a deep anal sinuosity, leaving a slightly depressed fasciole behind it. The anterior part of the outer lip is much produced and rounded, thin and simple. The columella is stout, white, short, obliquely truncate in front. The siphonal canal is wide, short, slightly flaring. The base of the shell is somewhat constricted, with the spiral striae stronger than on the rest of the surface.[2]

Distribution

This marine species occurs off California, USA.

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References
  1. Antiplanes thalaea (Dall, 1902). Retrieved through: World Register of Marine Species on 31 March 2010.
  2. Dall (1902) Illustrations and descriptions of new, unfigured or imperfectly known shells; Proceedings of the United States National Museum, v. 24 (1902) This article incorporates text from this source, which is in the public domain.
  • McLean J.H. (1996). The Prosobranchia. In: Taxonomic Atlas of the Benthic Fauna of the Santa Maria Basin and Western Santa Barbara Channel. The Mollusca Part 2 – The Gastropoda. Santa Barbara Museum of Natural History. volume 9: 1–160
  • Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295.
  • "Antiplanes thalaea". Gastropods.com. Retrieved 15 January 2019.
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